A beautiful deserted greenhouse in the middle of a park.

In the Middle Ages, villagers would sound this stone trumpet to boost fertility and coax fish to shore.

The ominously named cave is home to some remarkable ancient art.

The largest stone moai on Rapa Nui.

This was once the center of the Birdman cult, and is now a World Heritage Site.

This large round boulder is said to emit spiritual power, but it may just be magnets.

The world's most remote airport.

What was once a unique system of urban elevators is turning into a mechanical ruin.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

One of the oldest Catholic churches in the U.S., situated just east of Gettysburg.

These small house replicas have stood proudly since the 1950s, even as the property has changed hands.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

One of the few remaining covered bridges in Lancaster County.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

Come for the sustainable organic chocolate, stay for the sustainable organic booze.

An unconventional space for art and science housed in a massive old warehouse.

The greatest real estate coup of all time.

The most confusing clock in New York.

Red frames showcase remnants of one of New York's original subway stations.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

This highest peak in New Mexico is named after an explorer who had a habit of lending his monicker to peaks.

Setting this massive marionette aflame rids Santa Fe of doom and gloom for another year.

One man's prolific, decade-long quest to turn trash into artistic treasure.